CN201786302U - Expansion construction tool - Google Patents
Expansion construction tool Download PDFInfo
- Publication number
- CN201786302U CN201786302U CN2010205482879U CN201020548287U CN201786302U CN 201786302 U CN201786302 U CN 201786302U CN 2010205482879 U CN2010205482879 U CN 2010205482879U CN 201020548287 U CN201020548287 U CN 201020548287U CN 201786302 U CN201786302 U CN 201786302U
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- Prior art keywords
- expansion cone
- expansion
- mandrel
- seat
- cone seat
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- Expired - Fee Related
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Abstract
The utility model relates to technology field of drilling and completion, and well workover sleeve expansion tools in petroleum drilling and production and in particular to an expansion construction tool comprising a spindle, an expansion tube, an expansion cone, an expansion cone seat, and a connecting sleeve, wherein the outside of the spindle is provided with the expansion tube, the expansion cone seat being arranged between the spindle and the expansion tube, the expansion tube containing an enlargement tube and an expansion tube, the inner diameter of the enlargement tube being larger than that of the expansion tube, the expansion cone seat between the enlargement tube and the spindle being provided with an outer boss which is provided with at least one radial through hole, the expansion cone fixedly sleeving on the expansion cone seat which is disposed below the outer boss and being in sealing connection with the enlargement tube, a upper sealing apparatus being fixedly disposed between the upper end of the expansion cone seat and the spindle for sealing a upper cavity configured between the spindle and the expansion cone seat, the connecting sleeve sleeving on the spindle, the lower end of the expansion cone seat being fixedly mounted inside the connecting sleeve. The utility model has the advantages of rational and tight structure, convenient usage, efficient sealing, efficient working quality, easy processing by expansion cone, and high reliability.
Description
Technical field
The utility model relates to petroleum drilling and mining and bores completion, well workover casing expanding tool technical field, is a kind of expansion construction tool.
Background technology
In recent years, bulged tube technology has obtained successful application in drilling well, completion, workover treatment.Its main operating principle is to utilize hydraulic coupling or mechanical force to promote expansion cone to move along the expansion tube axis, because the internal diameter of expansion tube makes tubing that nonvolatil radial plastic deformation take place less than the maximum outside diameter of expansion cone.Move in order to form enough pressure promotion expansion tubes in the pressure chamber of expansion mechanism, it is particularly important that the sealing device of expansion mechanism seems, if hydraulic packing was lost efficacy, will cause whole expansion operation failure.
Summary of the invention
The utility model provides a kind of expansion construction tool, has overcome the deficiency of above-mentioned prior art, and it can effectively solve the problem of existing expansion mechanism sealing poor stability.
The technical solution of the utility model realizes by following measure: a kind of expansion construction tool comprises mandrel, expansion tube, expansion cone, expansion cone seat and adapter sleeve; In the mandrel outside expansion tube is arranged, the expansion cone seat is arranged between mandrel and expansion tube, expansion tube comprises expander and expand tube, the internal diameter of expander is greater than the internal diameter of expand tube, on the expansion cone seat between expander and the mandrel outer lug boss is arranged, the radial direction through hole that at least one is arranged on outer lug boss, expansion cone is fixedly set on the expansion cone seat of outer lug boss below and with expander and keeps sealing, is installed with the upper sealing device that can seal up the upper plenum that forms between mandrel and the expansion cone seat between the upper end of expansion cone seat and mandrel; Adapter sleeve is sleeved on the mandrel, the lower end of expansion cone seat is fixedly mounted in the adapter sleeve, between the lower end of expansion cone seat and mandrel, the lower sealing device that can seal up the following cavity that forms between mandrel and the expansion cone seat is installed, forms the pressure transmission chamber that is connected with radial direction through hole between the expansion cone seat between upper sealing device and lower sealing device and the mandrel.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned upper sealing device can comprise marks closely seat and upper baffle ring; There is inner convex platform the inboard of the pairing expansion cone seat of the outer lug boss above radial direction through hole, form upper plenum between inner convex platform, mandrel and the expansion cone seat, the upper end of upper baffle ring withstands on the upper surface of inner convex platform, marks closely seat by marking closely upper end with the expansion cone seat and be fixedly installed togather and holding out against upper baffle ring.
Above-mentioned marking closely can be fluted between seat upper end and the mandrel, is installed with scraping ring in groove, is fixed with the limiting stand that can block scraping ring on the seat marking closely of scraping ring front end.
Above-mentioned lower sealing device can comprise combination seal and lower baffle ring, in the inboard, lower end of expansion cone seat mounting groove is arranged, and Ka Tai is arranged on lower baffle ring, and combination seal and lower baffle ring are sleeved on the mandrel from top to bottom, and lower baffle ring is contained in the mounting groove by the card decometer.
The lower end of above-mentioned expansion cone seat can be fixedly mounted in the adapter sleeve by screw thread.
The narrow shape in wide two ends in the middle of the lateral surface of above-mentioned expansion cone is, folded acute angle is 10 ° between the middle part of expansion cone and the two ends of expansion cone.
The outside, the middle part of above-mentioned mandrel can be installed with adapter sleeve by screw thread, and the upper end of adapter sleeve holds out against on the bottom surface of expansion cone and the upper end of expansion cone is held out against on the bottom surface in outer lug boss, between expansion cone and mandrel sealing ring is installed.
The utility model reasonable and compact in structure, easy to use, good airproof performance not only, work quality height, and expansion cone handling ease, reliability height.
Description of drawings
Coding in the accompanying drawing is respectively: 1 is mandrel, and 2 is expansion cone, and 3 is the expansion cone seat, and 4 is adapter sleeve, 5 is expander, and 6 is expand tube, and 7 is outer lug boss, and 8 is radial direction through hole, 9 are the pressure transmission chamber, and 10 for marking closely seat, and 11 is upper baffle ring, 12 is inner convex platform, and 13 for marking closely, and 14 is scraping ring, 15 is limiting stand, and 16 is combination seal, and 17 is lower baffle ring, 18 is Ka Tai, and 19 is adapter sleeve, and 20 is sealing ring.
The specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
In the utility model, for convenience of description, the description of the relative position relation of each parts all is that the Butut mode according to Figure of description is described, as: the position relation of upper and lower, left and right etc. is what to determine according to the Butut direction of Figure of description.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this expansion construction tool comprises mandrel 1, expansion tube, expansion cone 2, expansion cone seat 3 and adapter sleeve 4; In mandrel 1 outside expansion tube is arranged, between mandrel 1 and expansion tube 2, expansion cone seat 3 is arranged, expansion tube comprises expander 5 and expand tube 6, the internal diameter of expander 5 is greater than the internal diameter of expand tube 6, on the expansion cone seat 3 between expander 5 and the mandrel 1 outer lug boss 7 is arranged, the radial direction through hole 8 that at least one is arranged on outer lug boss 7, expansion cone 2 is fixedly set on the expansion cone seat of outer lug boss 7 belows and with expander 5 and keeps sealing, is installed with the upper sealing device that can seal up the upper plenum of formation between mandrel 1 and the expansion cone seat 3 between the upper end of expansion cone seat 3 and mandrel 1; Adapter sleeve 4 is sleeved on the mandrel 1, the lower end of expansion cone seat 3 is fixedly mounted in the adapter sleeve 4, the lower sealing device that can seal up the following cavity that forms between mandrel 1 and the expansion cone seat 3 is installed between the lower end of expansion cone seat 3 and mandrel 1, form the pressure transmission chamber 9 that is connected with radial direction through hole 8 between expansion cone seat 3 between upper sealing device and lower sealing device and the mandrel 1, like this, when the annular space that forms between by expander 5 and mandrel 1 charges into the liquid of certain pressure, liquid enters into pressure transmission chamber 9 through radial direction through hole 8, axially slide downwards along mandrel 1 thereby promote expansion cone seat 3 drive expansion cone 2, thereby expand tube 6 is radially expanded by expansion cone 2 extruding expand tubes 6, expand.
Can according to actual needs above-mentioned expansion construction tool be made further optimization and/or improvements:
As shown in Figure 1, upper sealing device comprises and marks closely seat 10 and upper baffle ring 11; There is inner convex platform 12 inboard of the outer lug boss 7 pairing expansion cone seats 3 above radial direction through hole 8, form upper plenum between inner convex platform 12, mandrel 1 and the expansion cone seat 3, the upper end of upper baffle ring 11 withstands on the upper surface of inner convex platform 12, marking closely seat 10 is fixedly installed togather with the upper end of expansion cone seat 3 and holds out against upper baffle ring 11 by marking closely 13, like this, can reach better seal.
As shown in Figure 1, mark closely between seat 10 upper ends and the mandrel 1 flutedly, be installed with scraping ring 14 in groove, be fixed with the limiting stand 15 that can block scraping ring 14 marking closely on 10 of scraping ring 14 front ends, scraping ring 14 can be wiped the impurity on mandrel 1 surface off.
As shown in Figure 1, lower sealing device comprises combination seal 16 and lower baffle ring 17, there is mounting groove inboard, lower end at the expansion cone seat, card platform 18 is arranged on lower baffle ring 17, combination seal 16 and lower baffle ring 17 are sleeved on the mandrel 1 from top to bottom, lower baffle ring 17 is installed in the mounting groove by card platform 18, like this, can reach better seal.
As shown in Figure 1, for the ease of installation and removal, the lower end of expansion cone seat 3 is fixedly mounted in the adapter sleeve 4 by screw thread.
As shown in Figure 1, in order to reach expansion effect preferably, the narrow shape in wide two ends in the middle of the lateral surface of expansion cone 2 is, folded acute angle is 10 ° between the middle part of expansion cone 2 and the two ends of expansion cone.
As shown in Figure 1, for the ease of installing, the outside, middle part of mandrel 1 is installed with adapter sleeve 19 by screw thread, the upper end of adapter sleeve 19 holds out against on the bottom surface of expansion cone 2 and the upper end of expansion cone 2 is held out against on the bottom surface of outer lug boss 7, between expansion cone 2 and mandrel 1 sealing ring 20 is installed.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
Claims (10)
1. an expansion construction tool is characterized in that comprising mandrel, expansion tube, expansion cone, expansion cone seat and adapter sleeve; In the mandrel outside expansion tube is arranged, the expansion cone seat is arranged between mandrel and expansion tube, expansion tube comprises expander and expand tube, the internal diameter of expander is greater than the internal diameter of expand tube, on the expansion cone seat between expander and the mandrel outer lug boss is arranged, the radial direction through hole that at least one is arranged on outer lug boss, expansion cone is fixedly set on the expansion cone seat of outer lug boss below and with expander and keeps sealing, is installed with the upper sealing device that can seal up the upper plenum that forms between mandrel and the expansion cone seat between the upper end of expansion cone seat and mandrel; Adapter sleeve is sleeved on the mandrel, the lower end of expansion cone seat is fixedly mounted in the adapter sleeve, between the lower end of expansion cone seat and mandrel, the lower sealing device that can seal up the following cavity that forms between mandrel and the expansion cone seat is installed, forms the pressure transmission chamber that is connected with radial direction through hole between the expansion cone seat between upper sealing device and lower sealing device and the mandrel.
2. expansion construction tool according to claim 1, it is characterized in that upper sealing device comprise mark closely the seat and upper baffle ring; There is inner convex platform the inboard of the pairing expansion cone seat of the outer lug boss above radial direction through hole, form upper plenum between inner convex platform, mandrel and the expansion cone seat, the upper end of upper baffle ring withstands on the upper surface of inner convex platform, marks closely seat by marking closely upper end with the expansion cone seat and be fixedly installed togather and holding out against upper baffle ring.
3. expansion construction tool according to claim 2 is characterized in that marking closely between seat upper end and the mandrel fluted, is installed with scraping ring in groove, is fixed with the limiting stand that can block scraping ring on the seat marking closely of scraping ring front end.
4. according to claim 1 or 2 or 3 described expansion construction tools, it is characterized in that lower sealing device comprises combination seal and lower baffle ring, there is mounting groove inboard, lower end at the expansion cone seat, Ka Tai is arranged on lower baffle ring, combination seal and lower baffle ring are sleeved on the mandrel from top to bottom, and lower baffle ring is contained in the mounting groove by the card decometer.
5. according to claim 1 or 2 or 3 described expansion construction tools, it is characterized in that the lower end of expansion cone seat is fixedly mounted in the adapter sleeve by screw thread.
6. expansion construction tool according to claim 4 is characterized in that the lower end of expansion cone seat is fixedly mounted in the adapter sleeve by screw thread.
7. according to claim 1 or 2 or 3 described expansion construction tools, it is characterized in that the lateral surface of expansion cone is the narrow shape in middle wide two ends, folded acute angle is 10 ° between the middle part of expansion cone and the two ends of expansion cone.
8. expansion construction tool according to claim 6 is characterized in that the lateral surface of expansion cone is the narrow shape in middle wide two ends, and folded acute angle is 10 ° between the middle part of expansion cone and the two ends of expansion cone.
9. according to claim 1 or 2 or 3 described expansion construction tools, the outside, middle part that it is characterized in that mandrel is installed with adapter sleeve by screw thread, the upper end of adapter sleeve holds out against on the bottom surface of expansion cone and the upper end of expansion cone is held out against on the bottom surface in outer lug boss, between expansion cone and mandrel sealing ring is installed.
10. expansion construction tool according to claim 8, the outside, middle part that it is characterized in that mandrel is installed with adapter sleeve by screw thread, the upper end of adapter sleeve holds out against on the bottom surface of expansion cone and the upper end of expansion cone is held out against on the bottom surface in outer lug boss, between expansion cone and mandrel sealing ring is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205482879U CN201786302U (en) | 2010-09-29 | 2010-09-29 | Expansion construction tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205482879U CN201786302U (en) | 2010-09-29 | 2010-09-29 | Expansion construction tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786302U true CN201786302U (en) | 2011-04-06 |
Family
ID=43818269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205482879U Expired - Fee Related CN201786302U (en) | 2010-09-29 | 2010-09-29 | Expansion construction tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786302U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182417A (en) * | 2011-04-15 | 2011-09-14 | 中国石油天然气股份有限公司 | Fishing and expanding integrated expansion pipe patching tool |
| CN102979470A (en) * | 2012-12-07 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Uncemented expansion tail pipe hanger |
| CN103967438A (en) * | 2014-05-12 | 2014-08-06 | 中国石油化工股份有限公司 | Tool for repairing sleeve with expansion pipe |
| CN105618599A (en) * | 2014-10-28 | 2016-06-01 | 中国石油化工股份有限公司 | Pipe diameter expansion device and expansion cone used for same |
-
2010
- 2010-09-29 CN CN2010205482879U patent/CN201786302U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182417A (en) * | 2011-04-15 | 2011-09-14 | 中国石油天然气股份有限公司 | Fishing and expanding integrated expansion pipe patching tool |
| CN102979470A (en) * | 2012-12-07 | 2013-03-20 | 中国石油集团西部钻探工程有限公司 | Uncemented expansion tail pipe hanger |
| CN102979470B (en) * | 2012-12-07 | 2015-08-19 | 中国石油集团西部钻探工程有限公司 | Non-well cementation formula expandable liner hanger |
| CN103967438A (en) * | 2014-05-12 | 2014-08-06 | 中国石油化工股份有限公司 | Tool for repairing sleeve with expansion pipe |
| CN105618599A (en) * | 2014-10-28 | 2016-06-01 | 中国石油化工股份有限公司 | Pipe diameter expansion device and expansion cone used for same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20160929 |